I've got EBC semi floating steel discs on my '81 R65, with EBC graphite pads .
I have not noticed any real improvement in dry braking, but wet braking is greatly increased over the stock OEM rotors and pads .
Living in a desert, I don't have any issues with them rusting after getting wet, but one member here, Semper Gumby has them on his '80 R65, living in the Atlanta metro, area, he experiences a lot more wet weather than I do, has said his rust readily .
Braided stainless lines are a relatively low price upgrade and give a bit more 'feel' over old OEM rubber lines .